Multiplying voltage in a circuit

Status
Not open for further replies.

tsteele93

Newbie level 4
Joined
Jul 6, 2012
Messages
7
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
Greenville, SC
Activity points
1,342
I have a laser power meter that currently outputs voltage in mV but it is (by the design) off by a factor of 3.

For example, if I have a 3 watt laser, it is outputting 1 volt. Or if I have a 600mW laser, it is outputting 200mV.

I use a voltmeter to measure the output and multiply by three in my head.

I would LIKE to multiply my output by three and have the voltmeter display the correct mV to correlate to the laser output in mW.

What would be the best way to achieve this goal?

Should I use a circuit to try and triple the output? Or a resistor to cut the output to the correct numerical value but off by a decimal place?

Any pointers would be greatly appreciated.

Tom Steele
 

I figured as much, I guess it is time to do some reading.

- - - Updated - - -

Any tips on how to build a circuit that would do this? I'm assuming that just popping an op amp in line with the output isn't gonna do it.

Really dumb question, could you use a transformer to multiply voltage x3?
 
Last edited:

Status
Not open for further replies.
Cookies are required to use this site. You must accept them to continue using the site. Learn more…